This inventor holds 1 USPTO granted patent and 1 EPO patent. Top assignee: Robert Bosch. Active years: 2017.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2017
Title: Yanhui Xu and Harmonic Compensation in Electric Motors.
Introduction
Yanhui Xu is an inventor associated with Stuttgart, Germany, and Robert Bosch. His work includes an invention addressing torque ripple in electronically commutated electric motors.
Latest Patents
Xu is credited with 1 patent: “Electronically commutated electric motor with harmonic compensation.” The invention describes a motor with a stator, a rotor—particularly a permanent-magnet rotor—and a control unit that energizes the stator coils to create a rotating magnetic field.
A rotor-position sensor and a current sensor provide signals to the control unit. Using these signals, along with the voltage applied to the stator coils, a processing unit can determine harmonics of the electromotive force and generate a compensating control signal. Superimposing that signal on the motor’s control signal can reduce or eliminate the harmonics’ effects and thereby partly or fully compensate for torque ripple.
Career Highlights
Xu’s listed patent connects his work with electric-motor control and the reduction of torque fluctuations. The available information identifies Robert Bosch as his company but does not provide further details about his role or career history.
Collaborations
Ulrich Vollmer is identified as Xu’s coworker. The patent information provided does not specify their respective contributions or describe a formal collaboration.
Conclusion
Yanhui Xu’s listed invention uses sensor data and harmonic compensation to improve torque consistency in electronically commutated electric motors.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile